I should have been more clear (like the article!) it was after 1200 hour of Run-Time, not just a clock feature.So of course the failures would be scattered in time a bit depending on how much you use the set.I do embedded development for a living, most of my devices have RTCs, some have use counters to advise of maintenance periods. Do you think the screen would do a pop-up saying it's time for a visit by the Sony Techo'?